Home>Discussions>ELECTRICAL & LIGHTING>Main breaker off...a light still on?
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A. Spruce
Re: Main breaker off...a light still on?

A replacement of the breaker, maybe, but rewiring? And, rewiring what, the panel or the circuit that the unlicensed goon shorted out? I'd go with the professional guidance and leave the goon on the street corner where he belongs.

JLMCDANIEL
Re: Main breaker off...a light still on?

Ditto to Sprucey's answer.

Jack

sparky1
Re: Main breaker off...a light still on?

Ive shoted out circutis to find breakers.. but i was pretty green at the time!!:D sometimes a bad breaker will not open all the way causing voltage to still be going though.. we just replaced a 2500 amp switch a couple weeks ago that wouldnt open. Ya just need a new breaker

canuk
Re: Main breaker off...a light still on?

I'm trying to figure how shorting a branch receptacle would trip the main breakers.

JLMCDANIEL
Re: Main breaker off...a light still on?
canuk wrote:

I'm trying to figure how shorting a branch receptacle would trip the main breakers.

All you need is excessive load on one leg.

Jack

canuk
Re: Main breaker off...a light still on?
JLMCDANIEL wrote:

All you need is excessive load on one leg.

Jack

I don't think I would want to holding that shorting wire ( or paper clip ) when 100 amps comes down the line :eek::D

JLMCDANIEL
Re: Main breaker off...a light still on?
canuk wrote:

I don't think I would want to holding that shorting wire ( or paper clip ) when 100 amps comes down the line :eek::D

There could have already been 90 amps of load on that leg, the rest of the house had power until the short.

Jack

canuk
Re: Main breaker off...a light still on?
JLMCDANIEL wrote:

There could have already been 90 amps of load on that leg, the rest of the house had power until the short.

Jack

Perhaps-----------

meternerd
Re: Main breaker off...a light still on?

As a utility electrician, I'm thinking "Power Diversion". Some loads tapped off the line side of the meter. VERY Dangerous, since there's no breaker protection. Might at least be worth a look.

Re: Main breaker off...a light still on?
JLMCDANIEL wrote:

There could have already been 90 amps of load on that leg, the rest of the house had power until the short.

Jack

True, and I would exercise the main breaker a few times before I replaced it. But, not by shorting out a circuit!

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